The OECD manages several databases dedicated to international migration.

International Migration Database  presents flows and stocks of immigrants over the last 10 years by sex and detailed country of origin.

Database on Immigrants in OECD countries (DIOC)  compiles OECD population censuses around the year 2000 and provides a large set of tables describing demographic characteristics and labour market outcomes of foreign- and native-born populations.

Database on Immigrants in OECD and some non-OECD countries (DIOC extended)